Cerebral Circulation

Question 1

Cerebral Circulation

Answer 1

• the brain needs a constant supply of blood. Disruption of the blood flow to these vessels leads to insight of hte effects of CVA’s and TBI’s

Question 2

Anterior Circulation

Answer 2

• Contains common carotid arteries (cerebrum), ext/int carotid arteries (face, cerebral hemispheres and optic nerve, right/left-anterior/medial artery), middle cerebral artery (lateral surface of the brain and deep hemispheeres)

Question 3

Anterior Cerebral artery and Middle Cerebral artery circulate blood where?

Answer 3

• Anterior Brain

Question 4

Posterior Circulatoin

Answer 4

• Two vertebral arteries, branch from the sublavius artery
  1. Supply blood to the brain stem and cerebellum
  2. Arteries unite to form the basilar artery
  3. Basilar artery bifurcates to form the left and right PCA
  4. ACA & PCA interconnect to form the Circle of Willis

Question 5

What supplies the Occipital and Temporal Lobes with blood?

Answer 5

• Right and Left Posterior Cerebral Arteries

Question 6

What helps protect the brain if there is a decrease in blood flow?

Answer 6

• Circle of Willis

Question 7

Can the CNS regenerate?

Answer 7

• NO. NOPE, NOT AT ALL, GET OVER IT, IT AINT GONNA HAPPEN

Question 8

Can the PNS regenerate?

Answer 8

• Yes, you got lucky, very lucky.

- It contains a basement membrain

Question 9

Basement Membrane

Answer 9

• a specialized sheet like structure that separates tissues or membranes after injury, it provides a guide for migration of regenerating cells

Question 10

Regeneration occurs at what rate?

Answer 10

1.0mm per day